/Engine/Source/Editor/UnrealEd/Public/UnrealEdMisc.h
Opens the specified project file or game. Restarts the editor
void SwitchProject ( const [FString](API\Runtime\Core\Containers\FString) & GameOrProjectFileName, bool bWarn, const [TOptional](API\Runtime\Core\IO\TOptional)< [FString](API\Runtime\Core\Containers\FString) > & NewCommandLine )